Dental articulator.



PATENTED MAR. 3, 1908.

W. LUXMORE.

DENTAL ARTIGULATOR.

APPLICATION FILED Imo.19,19o6.

MINIMUM NVENTUR Html,

WITNEEEEE: 0%/ 8% WILLIAM LUXMORE, OF CHICAGO, ILLINOIS.

DENTAL ARTICULATOR.

No. senseo.

Application led December 19, i906.

T o all whom it 'may concern:

Beit known that I,WILLIAM LUxMonE, citizen ofthe United States, residing at Chicago, iii the county of Cook and State of Illinois, have invented certain new and useful Improveinents in Dental Articulators, of Which the following is a specification.

This invention relates to improvements in devices used by dentists in the manufacture of bridge-work and especially to that form of devices designated as articulators by the dental profession. I

The especial object of the im rovenients which form the subject matter o this application, is to provide a device in which the operations of investing and soldering in what is known as bridge work can be quickly and accurately performed with the greatest convenience to the operator. In carrying out these especial objects and others of general utility, I have invented the apparatus shown in preferred form in the accompanying1 drawing, and hereinafter described in detai In the said drawing :#Figure 1 is a side elevation of a device constructed according to my invention, and Fig. 2 is a top plan view of the same.

Referring to the details of the drawing, 3 and 4 represent respectively theI horizontal and vertical portions of a stand which furnishes the support for the operative parts of the apparatus. The part 3 is of sufficient .size to counterbalance the upper part of the apparatus to receive a suitable burner and afford a lirin base for the conical pedestal 4 which is preferably cast integral with the base'. 7 represents a boss near the upper end of the pedestal which is suitably tapped to receive a thumb screw 8, the inner end of which frictionally engages the walls of a tn be 6 which is slidahly mounted iii the bore of.

the pedestal. This tube has extending transversely thereof a pin 9 which serves as a stop for the rod 10 which is rotatably mounted in the tube' 6. The rod 10 is formed with a head 11 which is bored to receive the stud bolt 13 having a head 12 on the rear side as shown in the drawing. The head 12 is transversely bored to receive K slidably and rotatably the horizontal rod 15. The head 12 is tapped to receive the thumb screw 16 the inner end of which enters .the bore in which the rod 15 is mounted so that by proper adjustment of the thumb screw 1G, the rod 15 may be held 1n its adjusted positions or rc- Specification of Letters ateiit.

Patented arch 8, 1.908.

Serial No. 348,6313.v

leased as may be desired. Gn the bolt 13 is mounted a nut 1a which impinges frictionally on the head i1 when tightened.

Secured tothe outer end of the rod 15 by a pin 18 is a ball 17 which serves as a suitable grasping piece for the rod in adjusting the.v

latter. On the opposite end of the rod 151s the articula-tor proper, composed of the fol'- lowin'g elements: A lower jaw having a shoulder 19 which is tapped to receive the threaded end of the rod I5, and is formed i with a flattened portion 22a in which a series of countersunk openings 23 are formed to receive the investing plaster. Pivotally mounted on the shoulder 19 by a removable j -in the corresponding end of the upper jaw and has mounted thereon adjusting and locking nuts 26 and Z5 respectively. The threaded portion of the post 24 is slightly curved with a radius from 21 to accommodate the movements of the upper jaw on its pivotal axis.

In a device constructed substantially as described, the operator will proceed with his investing operations in the usual manner except that he will not be obliged to remove the case from the articulator proper at any time between the waxing up of the teeth and the soldering. The case can be readily removed by opening up the upper jaw, and the burner is placed on the base 3 while the case remains in the'articulator during the soldering operations. The upper jaw being adj usted and being locked in its adjusted positions, enables the operator to get his ease absolutely accurate and without the possibility of variance between the finishing operations and. the initial operations on the bridge work. The fact that the articulator is rotatably mounted on the axis represented by the rod 10 permits the operator to move the case over the frame and away from it at will, so that the hand work can be done without danger of burning the operator and without ,necessity for removing the burner. The longitudinal adjustment of the articulator by sliding the rod 15, enables the operator to bring the work at the desired point over-the llame and when so adjusted, it will bemaintained in that plosition by simply tightening the screw 16. The articulator being rotatable in its axis represented by the rod 15, permits the application of the flame to any surface of the case at will.

It will be apparent'that in a device con,- structed as described the parts can be readily detached from each other thus permitting packing in a small space.

Having4 thus described my invention what I claim as new, is

1. In a device of the character stated, a supporting stand comprisin a pedestal and a ase, a tube-vertically a justable in said pedestal, a vertical rodrotatably 'mounted in said tube, a horizontal rod adjustably mounted in said vertical rod, and articulat-f ing jaws secured to saidhorizontal rod.

2. In a device of the character stated, a supporting standc'omprising a pedestal and a ase, a tube vertically adjustable in said. pedestal, a vertical rod rotatably mounted in said tube, a horizontal rod .pivotally and slidably mounted on said vertical rod, an articulating jaw fixed on said horizontal rod and a second jaw hingedly arranged relative to saidxedjaw. j

3. In a device of the character stated, a supporting stand, articulating members comprising a fixed 'aw and a jaw pivotally` mounted on the ed jaw, means forlocking j said jaws in a predetermined relation, and

justab means ad y connecting said articulating members wit said stand.

l axis.

4. In a device of the character stated, a supporting stand, articulating members comssoee prising a fixed jaw, and a jaw hingedly connected withy the iixed jaw, means for adjusting said hinged jaw, and for locking it in its adjusted positions, a rod sup orting said jaws and provided with a suitable grasping portion, means for adjustably connecting said rod with said stand.

5. In a dental articulator, an upper and a lower .jaw adapted respectively to support the upper and lower jaws of a case, the upper -jaw hingedly connectedv with the lower jaw, means for adjusting said hinged jaw and for locking it in'its adjusted position, and'.means supporting said jaws whereby they will be simultaneously adjusted.

6. In a dental articulator, a-ixed jaw and a jaw hin edly connected* at .oneend with i sald ix'edjaw, means for readily disconnecting said jaws,` and means for adjusting the hinged jaw relative to the fixed jaw and for locking it in its adjusted osition.

7. In a dental artic ator, a fixed lower jaw and an upper jaw hingedly connected at one end with said xed jaw, means for adjusting the hinged jaw relative to the fixed jaw, and means for supporting said jaws, said means adapted to permit the jaws to be rotated about a horizontal axis and a vertical In testimony whereof'I affix my signature in presence of two witnesses.

WILLIAM LUXMORE. Witnesses:

` FRANK R. TowLE,

F. BENJAMIN. 

